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Controlling the motion of quanta

Solid-state devices that mimic biological motors can be built using magnetic flux quanta, or vortices. A new proposal describes how to transfer energy between two interacting vortex systems in a superconductor without having to physically 'sculpt' the host material.

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Figure 1: Potential energy landscape felt by vortices in an artificially patterned superconductor10.
Figure 2: Magnetic flux inside a superconductor configured as a 'vortex lens', which is one of several devices proposed by Savel'ev and Nori1.


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D'Anna, G. Controlling the motion of quanta. Nature Mater 1, 143–144 (2002).

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